All water systems in Illinois
5,097 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rock River Estates MHP Lee County |
400 | 1 | 0 | |
|
Schiller Woods 3070 Cook County |
400 | 3 | 1 | |
|
Schiller Woods 3102 Cook County |
400 | 3 | 1 | |
|
Schiller Woods W 3072 Cook County |
400 | 3 | 1 | |
|
Sigel Sigel · Shelby County |
400 | 0 | 0 | |
|
ST Mary's Slovenian Catholic Center Cook County |
400 | 0 | 0 | |
|
ST Marys of Lourdes Church Woodford County |
400 | 0 | 0 | |
|
ST Matthew Lutheran School Lake County |
400 | 1 | 0 | |
|
Sycamore Speedway Kane County |
400 | 2 | 2 | |
|
Tamarack Golf Club Ltd Will County |
400 | 2 | 1 | |
|
Timber Pointe the Lodge McLean County |
400 | 3 | 1 | |
|
Titan Tire Coorporation of Freeport Stephenson County |
400 | 1 | 0 | |
|
Loda Loda · Iroquois County |
398 | 1 | 1 | |
|
Seymour Water District Champaign County |
392 | 1 | 1 | |
|
Edgington Water District Rock Island County |
391 | 0 | 0 | |
|
Blm GW Mhp, LLC Bloomington · McLean County |
390 | 6 | 2 | |
|
Indian Creek Office Well Grundy County |
390 | 0 | 0 | |
|
Mulkeytown Pwd Franklin County |
390 | 2 | 0 | |
|
Paradise MHP Cook County |
390 | 0 | 0 | |
|
Bookwalter Woods MHP Grundy County |
389 | 1 | 0 | |
|
Oak Lane MHC Merrionette Park · Cook County |
388 | 0 | 0 | |
|
Perry Pike County |
388 | 2 | 0 | |
|
Forge at the Lake Madison County |
387 | 6 | 0 | |
|
Gladstone Gladstone · Henderson County |
387 | 1 | 0 | |
|
Oak Grove Village Mount Vernon · Jefferson County |
385 | 1 | 0 | |
|
S L M Water Commission St. Clair County |
385 | 1 | 0 | |
|
Royal Melbourne Homeowners Asn Long Grove · Lake County |
382 | 2 | 0 | |
|
Waynesville Waynesville · De Witt County |
381 | 0 | 0 | |
|
Buysse Subdivision Henry County |
380 | 2 | 0 | |
|
Linway Estates MHP Cook County |
380 | 1 | 1 | |
|
Monroe Center School New Well Ogle County |
380 | 3 | 0 | |
|
Monroe Center School Old Well Ogle County |
380 | 5 | 0 | |
|
Sublette Sublette · Lee County |
380 | 0 | 0 | |
|
Joy Joy · Mercer County |
377 | 4 | 1 | |
|
Fountain Valley MHP Champaign County |
375 | 3 | 2 | |
|
Henderson Henderson · Knox County |
375 | 5 | 3 | |
|
Longacre Estates MHP Coles County |
375 | 0 | 0 | |
|
Martinton Martinton · Iroquois County |
375 | 1 | 0 | |
|
Silo Restaurant Lake County |
375 | 1 | 0 | |
|
Smithfield Smithfield · Fulton County |
375 | 0 | 0 | |
|
ST Francis Xavier Church Kendall County |
375 | 1 | 0 | |
|
Sunny Hill Estates Subdivision Henry County |
375 | 1 | 0 | |
|
Whispering Lakes Water System, Inc. Lake County |
375 | 1 | 0 | |
|
Bilingual Rock Immersion School Lake County |
373 | 0 | 0 | |
|
Freeman Spur Freemanspur · Williamson County |
373 | 1 | 1 | |
|
Ilur Woods Edge MHP LLC Urbana · Champaign County |
373 | 0 | 0 | |
|
Irving Irving · Montgomery County |
373 | 2 | 0 | |
|
Jellystone Park Milbrook Kendall County |
371 | 2 | 2 | |
|
Carbon Hill Carbon Hill · Grundy County |
370 | 1 | 0 | |
|
Shangri-La MHP Ogle County |
370 | 1 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Illinois records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.